| Base | Representation |
|---|---|
| bin | 1100110111101010100… |
| … | …1100000001001010100 |
| 3 | 210010200220121011201212 |
| 4 | 3031322221200021110 |
| 5 | 12110303331011040 |
| 6 | 245323350240552 |
| 7 | 21655042522541 |
| oct | 3157251401124 |
| 9 | 703626534655 |
| 10 | 221101032020 |
| 11 | 8584a84a940 |
| 12 | 36a26356158 |
| 13 | 17b07b4943b |
| 14 | a9b66d3bc8 |
| 15 | 5b40bcbd65 |
| hex | 337aa60254 |
221101032020 has 96 divisors (see below), whose sum is σ = 537560343936. Its totient is φ = 75495628800.
The previous prime is 221101032011. The next prime is 221101032023. The reversal of 221101032020 is 20230101122.
It is a happy number.
221101032020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a junction number, because it is equal to n+sod(n) for n = 221101031986 and 221101032004.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (221101032023) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1551155 + ... + 1687685.
It is an arithmetic number, because the mean of its divisors is an integer number (5599586916).
Almost surely, 2221101032020 is an apocalyptic number.
221101032020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 221101032020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268780171968).
221101032020 is an abundant number, since it is smaller than the sum of its proper divisors (316459311916).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
221101032020 is a wasteful number, since it uses less digits than its factorization.
221101032020 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 137001 (or 136999 counting only the distinct ones).
The product of its (nonzero) digits is 48, while the sum is 14.
Adding to 221101032020 its reverse (20230101122), we get a palindrome (241331133142).
The spelling of 221101032020 in words is "two hundred twenty-one billion, one hundred one million, thirty-two thousand, twenty".
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